Which action is not an acceptable option when dirt obscures emission components and cannot be cleaned to confirm integrity?

• A. Clean area and proceed with inspection.
• B. Document the issue and consider a fail if integrity cannot be confirmed.
• C. Check other components for indicators of integrity.
• D. Immediately issue a pass without confirmation.

Answer: (D)

When you can’t confirm component integrity because dirt is obscuring the parts and there’s no feasible way to clean it to reveal the condition, you must not grant a pass. The critical action is to document the obstruction and, since you can’t verify that the components meet the required standards, consider a fail or otherwise defer confirmation. You can look for any indirect evidence from other components or indicators to support, but a clean pass cannot be issued without proper confirmation. Cleaning to proceed isn’t valid if it won’t actually reveal the integrity, and issuing a pass without confirmation is precisely what you should avoid in this situation.